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Separation of carrier-free 103Pd and 109Pd by spontaneous electrodeposition</p> </p>

  • I. A. Abbasi
  • J. H. Zaidi
  • M. Arif
  • M. S. Subhani
Article

Summary

Spontaneous electrodeposition for the separation of electropositive metal ions is an attractive technique. This technique needs no external electromotive force. In this work, a spontaneous electrodeposition technique has been elaborated for the separation of carrier-free radioisotopes of palladium from neutron-irradiated cadmium targets. The deposited radioactive palladium was removed by dipping the platinum electrode in nitric acid giving a highly pure yield of carrier-free 109Pd and/or 103Pd. The separation factor achieved was reasonable (1.3 . 106). The process is very simple and needs little manipulation and amenable to automation and remote processing. The process is not sensitive to Cd(NO3)2 and HNO3 concentrations. Deposition velocity (4.119±0.353) . 10-2  min-1   and deposition constant 0.1211 cm . min-1 were calculated and from the temperature dependence of the deposition velocity constants, the activation energy (0.1155±0.3169 eV) was also determined. The thermodynamic spontaneity can be satisfied at different concentrations of Pd2+ ions. The process was found to be irreversible.</p> </p>

Keywords

Activation Energy Cadmium Palladium Nitric Acid HNO3 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag/Akadémiai Kiadó 2006

Authors and Affiliations

  • I. A. Abbasi
    • 1
  • J. H. Zaidi
    • 2
  • M. Arif
    • 3
  • M. S. Subhani
    • 4
  1. 1.Department of Chemistry, Quaid-e-Azam University
  2. 2.Nuclear Chemistry Division, Pakistan Institute of Nuclear Science and Technology
  3. 3.Nuclear Chemistry Division, Pakistan Institute of Nuclear Science and Technology
  4. 4.Department of Chemistry, Quaid-e-Azam University

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